Mobile station

1. A mobile station configured to start transmitting a measurement report including a radio quality of multiple cells upon detecting that a monitor period has passed in a state where the radio quality of the multiple cells still satisfies an entering condition, and to repeatedly transmit the measurement report at reporting intervals until a leaving condition is satisfied, wherein when, during communication, the mobile station starts transmitting a first measurement report including a radio quality of a first cell among multiple cells and thereafter starts transmitting a second measurement report including a radio quality of a second cell among multiple cells, the mobile station is configured to repeatedly transmit the first measurement report and to repeatedly transmit the second measurement report, at the same timings, wherein the mobile station is in connected mode, and wherein the mobile station is configured not to start transmitting the second measurement report even if the mobile station does not detect that the monitor period has passed in a state where the radio quality of the second cell among multiple cells satisfies the entering condition and when one of the timings to repeatedly transmit the first measurement report comes.